<template>
<div>
    <!--面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域  -->
    <el-card class="box-card">
        <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>

        </el-row>

        <!-- 用户列表区域 -->
        <el-table :data="userlist" border :stripe="true">
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" width="180">
                <template slot-scope="scope">
                    <!-- 修改按钮 -->
                    <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                    <!-- 删除按钮 -->
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                    <!-- 分配角色按钮 -->
                    <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                        <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page=" queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" :before-close="handleClose">
        <!-- 内容主体区域-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="80px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>

        </el-form>
        <!-- 底部区域-->
        <span slot="footer" class="dialog-footer">
            <el-button @click="resetSubmitUserHandle">取 消</el-button>
            <el-button type="primary" @click="submitUserHandle">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户对话框-->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
        <!-- 内容主体区域-->
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
            <el-form-item label="用户名">
                <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>

            <el-form-item label="邮箱">
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机">
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>

        </el-form>
        <!-- 底部区域-->
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 分配角色的对话框-->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
        <div>
            <p>当前的用户： {{userInfo.username}}</p>
            <p>当前的角色：{{ userInfo.role_name}}</p>
            <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option v-for="item in rolesList" :key="item.value" :label="item.roleName" :value="item.id">
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>

    </el-dialog>
</div>
</template>

<script>
export default {
    data() {
        // 自定义验证规则
        // 验证邮箱的规则
        var checkEmail = (rule, value, cb) => {
            // 验证邮箱的正则表达式
            const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
            if (regEmail.test(value)) {
                //  合法邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号的规则
        var checkPhone = (rule, value, cb) => {
            const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/

            if (regMobile.test(value)) {
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return {
            // 获取用户列表的参数对象
            queryInfo: {
                query: '',
                // 当前的页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            userlist: [],
            total: 0,
            // 控制添加对话框的显示与隐藏
            addDialogVisible: false,
            // 添加用户的表单数据
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加啊表单的用户规则对象
            addFormRules: {
                // 用户名的验证规则
                username: [{
                    required: true,
                    message: '请输入用户名',
                    trigger: 'blur'
                }, {
                    min: 3,
                    max: 10,
                    message: '用户名的长度在3~10个字符之间',
                    trigger: 'blur'
                }],
                password: [{
                    required: true,
                    message: '请输入密码',
                    trigger: 'blur'
                }, {
                    min: 6,
                    max: 15,
                    message: '用户名的长度在6~15个字符之间',
                    trigger: 'blur'
                }],
                email: [{
                    required: true,
                    message: '请输入邮箱',
                    trigger: 'blur'
                }, {
                    validator: checkEmail,
                    trigger: 'blur'
                }],
                mobile: [{
                    required: true,
                    message: '请输入手机号',
                    trigger: 'blur'
                }, {
                    validator: checkPhone,
                    trigger: 'blur'
                }],
            },
            //控制修改用户对话框的显示与隐藏
            editDialogVisible: false,
            // 查询到的用户信息对象
            editForm: {},
            // 修改表单的验证规则对象
            editFormRules: {
                email: [{
                    required: true,
                    message: '请输入邮箱',
                    trigger: 'blur'
                }, {
                    validator: checkEmail,
                    trigger: 'blur'
                }],
                mobile: [{
                    required: true,
                    message: '请输入手机号',
                    trigger: 'blur'
                }, {
                    validator: checkPhone,
                    trigger: 'blur'
                }],
            },
            //控制分配角色对话框的显示与隐藏
            setRoleDialogVisible: false,
            //需要被分配角色的用户信息
            userInfo: {},
            // 所有角色的数据列表
            rolesList: [],
            // 已选中的角色Id
            selectedRoleId: ''
        }
    },
    created() {
        this.getUserList()
    },
    methods: {
        async getUserList() {
            const {
                data: res
            } = await this.$http.get('users', {
                params: this.queryInfo
            })
            if (res.meta.status != 200) {
                return this.$message.error('获取用户列表失败！')
            }
            this.userlist = res.data.users
            this.total = res.data.total
            console.log(res);
        },
        //  监听 pagesize 改变的事件
        handleSizeChange(newSize) {
            // console.log(newSize);
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage) {
            //conlose.log(newPage)
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听事件开关状态的改变
        async userStateChanged(userInfo) {
            //console.log(userInfo)
            const {
                data: res
            } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
            // console.log(res.meta.status)
            if (res.meta.status !== 200) {
                userInfo.mg_state = !userInfo.mg_state
                return this.$message.error('更新用户状态失败！')
            }
            this.$message.success('更新用户状态成功')
        },
        handleClose() {},
        // 表单提交
        submitUserHandle() {
            this.$refs.addFormRef.validate(async (valid) => {

                if (!valid) return false;
                //可以发起添加用户的网路请求
                const {
                    data: res
                } = await this.$http.post('users', this.addForm)
                console.log(res.data)
                console.log(res.meta)
                if (res.meta.status !== 201) this.$message.error("创建用户失败")
                this.$message.success("创建用户成功！")
                // 隐藏添加用户的对话框
                this.addDialogVisible = false
                this.getUserList()
            })

        },

        resetSubmitUserHandle() {
            this.$refs.addFormRef.resetFields();
            // 隐藏添加用户的对话框
            this.addDialogVisible = false
        },

        // 展示编辑用户对话框
        async showEditDialog(id) {
            // console.log(id)
            const {
                data: res
            } = await this.$http.get('users/' + id)
            if (res.meta.status !== 200) {
                return this.$message.error('查询用户信息失败！')
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed() {
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo() {
            this.$refs.editFormRef.validate(async valid => {
                if (!valid) return false
                // 发起修改用户信息的数据请求
                const {
                    data: res
                } = await this.$http.put('users/' + this.editForm.id, {
                    email: this.editForm.email,
                    mobile: this.editForm.mobile
                })
                if (res.meta.status !== 200) {
                    return this.$message.error('更新用户信息失败')
                }

                // 关闭对话框
                this.editDialogVisible = false
                // 刷新数据列表 
                this.getUserList()
                // 提示修改成功
                this.$message.success("更新用户信息成功！")
            })
        },
        // 根据Id删除对应用户的信息
        async removeUserById(id) {
            // 弹框询问用户是否删除数据

            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                //     confirmButtonText:'确定',
                //     cancelButtonText:'取消',
                //     inputPattern:/[\w!#$%&'*+/=?^_`{|}~-]+(?:\.[\w!#$%&'*+/=?^_`{|}~-]+)*@(?:[\w](?:[\w-]*[\w])?\.)+[\w](?:[\w-]*[\w])?/,
                //     inputErrorMessage:'邮箱格式不正确'
                // }).then(({
                //     value
                // }) => {
                //     this.$message({
                //         type: 'success',
                //         message: '你的邮箱是: ' + value
                //     });
                // }).catch(() => {
                //     this.$message({
                //         type: 'info',
                //         message: '取消输入'
                //     });
                // });
                // showCancelButton: true,
                // showConfirmButton: false,
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'error'
            }).catch(err => err)
            // console.log(confirmResult)

            //如果用户确认删除，则返回值为字符串 confirm
            // 如果用于取消了删除，则返回值为字符串 cancel
            // console.log(confirmResult)
            if (confirmResult !== 'confirm') {
                return this.$message.info('已取消删除')
            }

            const {
                data: res
            } = await this.$http.delete('users/' + id)

            if (res.meta.status !== 200) {
                return this.$message.error('删除用户失败！')
            }

            this.$message.success('删除用户成功！')
            this.getUserList()

        },
        // 展示分配角色对话框
        async setRole(userInfo) {
            this.userInfo = userInfo

            // 在展示对话框之前,获取所有角色列表
            const {
                data: res
            } = await this.$http.get('roles')
            if (res.meta.status != 200) {
                return this.$message.error('获取角色列表失败！')
            }

            this.rolesList = res.data

            this.setRoleDialogVisible = true
        },
        // 点击按钮， 分配角色
        async saveRoleInfo() {
            if (!this.selectedRoleId) {
                return this.$message.error('请选择要分配的角色')
            }

            const {
                data: res
            } = await this.$http.put(`users/${this.userInfo.id}/role`, {
                rid: this.selectedRoleId
            })

            if (res.meta.status !== 200) {
                return this.$message.error('更换角色失败！')
            }
            this.$message.success('更换角色成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed() {
            this.selectedRoleId = '',
                this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>
